<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>装饰</title>
    <style>
        .red {
           color: red;
        }
        div {
            color: blue;
        }
    </style>
</head>
<body>
    <ul>
        <li class="red">这就是夫赖</li>
        <li>这就是树叶</li>
        <li>这就是王者荣耀</li>
    </ul>
    <div>我喜欢蓝色</div>
    <div>我也喜欢蓝色</div>
    <div>我还是喜欢蓝色</div>
</body>
</html>